.box{
	width: 980px;
	margin-left: auto;
	margin-right: auto;
}
.post{
	width: 680px;
	margin-right: 20px;
	margin-top: 20px;
}
.billboards{
	width: 280px;
}
.portrait{
	width: 80px;
	height: auto;
}
.author{
	margin-right: 50px;
	margin-top: 80px;
	float: left;
}
.rmove{
	margin-left: 500px;
}
